Still no answer from any developer. I see other people connect trough Facebook, unfortunately I do not have a Facebook account therefore I am unable to save my process both on my iPod and computer. It’s odd because connecting to Game Center is possible on the iPod (iOS) but not on Macintosh (macOS). If you could arrange that it would be great. Thanks again,

This is something we’re looking into. Unfortunately we won’t be able to sync between iOS and Mac OS, as they are different products.

Initially we put all non-Steam and non-GOG users onto a single leaderboard solution, to make sure there were enough users to keep the leaderboards populated and interesting. But now that the Mac App Store is performing quite well it makes sense to maybe separate it out and ofter native Game Center support.